/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.apache.cgiservlet;

import java.io.IOException;
import java.io.OutputStream;

/**
 * Allows to use per thread streams with one entry point
 * @author Sergey I. Salishev
 */
public final class ThreadOutputDemultiplexor extends OutputStream {
	
	ThreadLocal<OutputStream> stream = new ThreadLocal<OutputStream>();
	
	/**
	 * @return stream set for current thread
	 */
	public OutputStream get() {
		return stream.get();
	}
	
	/**
	 * @param s stream for current thread
	 */
	public void set(OutputStream s) {
		stream.set(s);
	}

	@Override
	public void write(int c) throws IOException {
		get().write(c);
	}

	@Override
	public void write(byte buf[], int start, int length) throws IOException {
		get().write(buf, start, length);
	}
}
